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1. Flowers must rely on vectors to move pollen. These vectors can include wind, water, birds, insects, butterflies, bats, and other animals that visit flowers. We call animals or insects that transfer pollen from plant to plant “pollinators”.

2. Germination:When a seed falls on the ground, it needs warmth and water in order to germinate; some seeds also need light. Dicots have seed coats that soften with moisture. After being planted in the soil for a few days, the seed absorbs water and swells until the seed coat splits.

Answer:

B: Plants use carbon dioxide and release oxygen during photosynthesis

Explanation:

Answer:

The correct answer would be - option D. perform anaerobic respiration in the absence of oxygen.

Explanation:

Yeast is a facultative anaerobic single-cell organism that can live without oxygen. If yeast cells did not get the oxygen they use anaerobic respiration to get the energy.

If the baker activates these cells and stops them to get oxygen the yeast cells have to switch to anaerobic respiration to survive and produces ethanol and releases carbon dioxide.

Answer:

Hormones

Explanation:

Hormones is the term used for chemical secretion of endocrine glands responsible for changes taking in the body.

Answer:

Because even if they are similar, they still have a difference between them, and that difference helps other plants.

It is possible because plants require other factors like sunlight and soil nutrients) other than Temperature and precipitation to grow

Plants require some Important factors for its growth and development and they are :

The two ecosystems with identical conditions of Temperature and precipitation might have differences in the amount of sunlight they receive and the Nutrients contained in its soil. therefore the ecosystems although similar can support different plants based on the difference in the amount of sunlight and Nutrients contained in the soil.

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Answer:

B and C I think

Explanation:

Those ones make the most sense in my opinion.

the surgical method carried out in males is called ( Vasectomy) = cutting of sperm tube

in female it is ( tubectomy)

cutting of oviduct

Answer:

a) virtual and erect

Plane mirrors are the only type of mirror for which a real object always produces an image

Answer:

The name of the element is carbon, there are 6 protons, and nitrogen has a smaller atomic number.

Explanation:

The atomic number of carbon is 6, not 12.

The atomic mass of carbon is 12.01g, not 12.

It does have six protons, it has a larger atomic number (6) than nitrogen (5) and it is called carbon.

Answer:

He would need to cross one homzygous red (RR) and homzygous white (rr)

Explanation:

Flower color in snapdragons is controlled by a gene whose alleles exhibits incomplete dominance. The allele for red coloration (R) is incompletely dominant over the allele for white coloration (r). The intermediate phenotype that is produced in an heterozygous state (Rr) is PINK.

According to this question, a botanist wanted to produce a generation of snapdragons that all had pink flowers (Rr). This means that in order to do this, the botanist would need to cross a red snapdragon plant (RR) and a white snapdragon plant (rr) to produce an 100% Pink (Rr) snapdragon in the F1 generation.

Answer:

☁︎both positive and negative. for making ponds for other animals to live in but clearing large amounts of vegetation☁︎

Based on their activities, it can be concluded that Elephants have both positive and negative effects on their environment.

A habitat is refers to a place where a living organism is found.

The activities of an organism affects the habitat of that organism.

Elephants shape their environment in many ways, both positive and negative.

They can negatively impact their environment by changing a forest to a grassy field.

They can positively impact their habitats by creating new habitats from existing habitat such as by digging a hole that might become a pond.

Therefore, it can be concluded that  Elephants have both positive and negative effects on their environment.

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The hidden code in the puzzle is 4321.

The riddle in the picture has the objective of hiding the order of the numbers so that the reader finds the order. In this puzzle the reader must follow the line of each letter and find the order of the numbers to find the code.

Based on the above, it can be inferred that:

So the complete code would be:

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Answer:

It's actually 3214

Explanation:

Answer:

the atomic number of sodium is 11

11 is the atomic number of sodium

Answer:

B Autotrophs make their own food because they are producers.

Explanation:

Answer:

Point mutation

Explanation:

Point mutation is a kind of mutation that involves a single nucleotide base. Generally, mutation is any alteration that occurs to the genetic sequence of an organism, however, point mutation involves only one base of the numerous in the sequence.

Point mutation can be an insertion, substitution, deletion etc, but it is the gene mutation that would have the smallest impact on a protein's amino acid sequence. This is because the change to the genetic sequence involves a single base.

Answer:

Humans changed the environment by: overpopulation, pollution, burning fossil fuels, and deforestation.

Explanation:

Answer:

Explanation:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Answer:

Yes.

Explanation:

Yes, changes in the environmental conditions of a specific region result in formation of new ecosystems as well as the lost of old biodiversity occur because the organisms of that old ecosystem can't tolerate the change that occurs in the environment so they become extinct or migrated to another suitable place and only those organisms begins to live which can survive in that environmental conditions.

Answer:

ribosome -> ER -> Golgi -> released

Explanation:

Ribosomes are where proteins are created, ribosomes are located on the rough endoplasmic reticulum (RER). From the ER, proteins will be transported to the Golgi Complex for packaging, transport, and release. The answers with lysosome can be ignored because lysosomes break down waste materials of the cell. Therefore the answer is ribosome -> ER -> Golgi -> released.

Answer:

Cellular respiration describes the series of steps that cells use to break down sugar and other  chemicals to get the energy we need to function.  Energy is stored in the bonds of glucose (like a stretched rubber band), and when glucose is broken down, much of that energy is released.  Some of it is captured in a form that can be used to do work in cells - a molecule called adenosine triphosphate or ATP. The energy that is not captured in ATP is usually given off as heat (one of the things that helps us maintain our normal body temperature).

Answer:

the name of the process should be osmosis

Explanation: Reason being that plant cells are hypertonic because they have a cell sap so when they are pout in distilled water  which is a hypotonic solution, it then absorbs water by osmosis and swells up and become turgid. But they do not burst because they have a cell wall that develops a wall pressure that balances the turgor pressure exerted by turgid cells

Answer:

Troposphere - temperature decreases with altitude

Stratosphere - temperature increases with altitude

Mesosphere - temperature decreases with altitude

Thermosphere - temperature increases with altitude

Here's a visual to to the changes in temperature as altitude increases:

how many layers are in earth atmosphere ?

The Earth’s atmosphere is layered and each layer of the atmosphere has its own specific traits. The atmosphere of Earth is divided into four layers as Troposphere, Stratosphere, Mesosphere and Thermosphere

Generally, temperatures decrease with increasing height because the atmosphere distributes itself according to gravity. In the troposphere, the temperature generally decreases with altitude. The reason is the troposphere's gases absorb very little of the incoming solar radiation.

Troposphere - temperature decreases with altitude

Mesosphere - temperature decreases with altitude

The temperature increases with increasing altitude in the stratosphere because there’s a high concentration of ozone molecules.

Stratosphere - temperature increases with altitude

Thermosphere - temperature increases with altitude

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Answer: C

Explanation: it gets weaker because there not as close together

Answer:

Mitochondrial DNA is useful as a molecular clock because it displays uniparental inheritance

Answer:

1. The main physiological role of red blood cells (RBCs), or erythrocytes is to transport of gases (O2, CO2) from the lung to the tissues and to maintain systemic acid/base equilibria. In addition, RBCs are well equipped with antioxidant systems, which essentially contribute to their function and integrity.

2. In humans, it includes plasma (the liquid portion), blood cells (which come in both red and white varieties), and cell fragments called platelets. Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in.

3.Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

Answer: A

Explanation:

An oceanic basin is the land surface under an ocean that includes the various topography below the water. This includes the continental shelf, abyssal plain, mid-ocean ridge and other formations that may exist on the seafloor.

Answer: A subset of Gymnosperms

Explanation: They are cone-bearing seed plants