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padilas [110]
3 years ago
13

What is fertilization , and where does fertilization occur

Biology
1 answer:
Softa [21]3 years ago
7 0
In humans fertilization occurs in the end of the fallopian tube away from the uterus (close to the ovary). The egg and the associated cumulus cells are ovulated (released) from an ovarian follicle and picked up by the fallopian tube. The tube pulls it inside where the sperm can find it.
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A species that plays a critical role in maintaining the structure of an ecological community and helps to determine the types an
amm1812

Answer:

Option A, Key stone

Explanation:

A keystone species plays a major role in an ecosystem as it is the species whose presence effects all other species in the ecosystem .In general a keystone species is always a dominant predator that feed on prey population. If it is removed, the prey population will explode and the population diversity will reduce. For example - bison, prairie dog etc.  

Hence, option A is correct

7 0
2 years ago
Explain why it is an advantage to have breathing controlled by a reflex
algol13
It is an advantage due to the fact you do not have to think about it. therefore while sleeping you still breathe and you do not have to be conscious
8 0
3 years ago
1. In Linnacus's time, all living things were grouped into two kingdoms. Later, there were five ( point)
Pepsi [2]

Answer:

<em>As scientists learned more about genetics and biochemistry , some organisms were moved out of existing kingdoms and into new ones.</em>

Explanation:

As the researches in the scientific world continued, scientists realized that there were, in fact, many genetic diversities present in organisms which were placed in the same groups. Hence, they realized that due to these differences these organisms should not be kept in the same group. As a result, the groups in the classification system increased.

Carolus Linnaeus just grouped organisms based on their features. But today, scientists classify organisms based on various perspectives such as the evolutionary history, genetic similarities etc.

3 0
3 years ago
Do Decomposers use carbon to make food molecules
babunello [35]

Answer: it releases it

Cellular respiration is done by decomposers to provide energy for themselves, and the molecules of the object the decomposers eat goes through cellular respiration. Eventually, the molecules from the object are released as CO2 and H2O because of cellular respiration, and CO2 and H2O are used in photosynthesis.

Hope this helps you:)

3 0
2 years ago
1.How does being made of many cells help large organisms maintain homeostasis?
Ugo [173]

Answer:

1.Small cell: has larger surface-area to volume ratio  

  Bigger Cell:  has little space to volume ratio

   

2. Surface area to volume ratio, in simple means the size of surface area to the volume of substance that can pass through it at a particular time.

Amoeba and some bacteria's are flat and have large surface area to volume ratio. So the diffusion rate is very high due to large surface area.

Where as humans have small surface area: volume so diffusion is very slow or does not take place at all.

3. Diffusion and Cell Size

The larger a cell is, the greater the surface area available for diffusion. ... Smaller cells have a much greater surface area to volume ratio allowing material to diffuse throughout the entire volume of the cell quickly and efficiently.

7 0
3 years ago
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