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olga2289 [7]
2 years ago
11

Plz Help Me Will make brainliest if got it right!!!

Biology
2 answers:
Oduvanchick [21]2 years ago
7 0
It’s b I had to do a project on the same bottle neck topic
Rina8888 [55]2 years ago
6 0

Answer:

Sorry if I'm wrong but I think it's B

Explanation:

A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts or human activities such as specicide and human population planning.

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3. In 3-5 sentences explain why the saying,”you are what you eat” is factually correct
ivolga24 [154]
When ingesting a substance, it had its own unique effect on our body, for better or worse. For example, take a greasy food, such as friend fries. It shoots our cholesterol way up, bringing the fat content in our bodies up. Therefore, we truly are what we eat, we eat healthy, we’ll be healthy. We eat unhealthy, we’ll be unhealthy.
5 0
3 years ago
The image shows a magnified view of a leaf's surface with the stomata visible. What’s the significance of these structures in th
Deffense [45]

The correct answer is option (d) They allow the exchange of gases between cells in the leaf and the external environment.

Stomata are the tiny openings present in the epidermis (outer layer of cells) of the leaf. They have a pore which is guarded by the guard cells which controls the opening and closing of the stomata. Air enters and exits through the stomata.

The main funtion of stomata is to facilitate the gaseous exchange. The gas exchange that occurs when the stomata are open helps in the process of photosynthesis. During photosynthesis, carbon dioxide is taken in from the atmosphere and oxygen is released as a by-product of photosynthesis. The glucose produced is converted into the starch and stored in the leaves.

Also, water vapour diffuses through the stomata into the atmosphere by a process called the transpiration.

Thus, stomata are the structures that are mainly involved in the gaseous exchange between the cells of the leaf and the atmosphere.

8 0
3 years ago
Read 2 more answers
Which of the following is a accurate depiction of primary ecological succession?
Jlenok [28]

Answer:

This question lacks options, however, primary succession will be explained for detailed comprehension.

Explanation:

Ecological succession is the gradual series of changes that occurs in an ecosystem, charging it's structure and composition over time. It is of two types namely; primary and secondary successions.

Primary succession is characterized by the "LACK OF NO SOIL". It begins on a barren piece of land e.g rocks, with no form of life previously known to colonize the area. In primary succession, the barren land is first colonized by organisms such as lichens etc., which are collectively regarded to as PIONEER SPECIES.

7 0
2 years ago
The lungfish Protopterus aethiopicus has a genome 38 times larger than that of humans. Most of the DNA in this species is noncod
timofeeve [1]

Answer:

You could generate cDNA libraries and compare the transcribed regions of the genome

3 0
3 years ago
While the release of bioactive chemicals by the plant to protect itself from the insects attack is a
larisa [96]

adaptation to avoid predators, while the release of bioactive chemicals by the plant to protect.

7 0
2 years ago
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