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Luba_88 [7]
3 years ago
14

Which structure on the sperm propels in toward the egg

Biology
2 answers:
AnnyKZ [126]3 years ago
6 0

flagellum is the answer! Hope this helps!!!!!

Ahat [919]3 years ago
6 0

Answer: Tail

Explanation: Sperms usually consists of two regions.One is head and other one is tail. The tail part of the sperm propels it towards the egg and helps it to burrow through the egg coat.

The head region of the sperm contain condensed form of haploid nucleus. The DNA is packed extremely tight inside the head.

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What is not an example of negative feedback
svetoff [14.1K]
<h2>Answer:</h2>

<u>Blood clotting</u> is a positive feedback.

<h2>Explanation:</h2>

All the physiological process occurring in the body are monitored by two types of mechanism called negative feedback and positive feedback.  

Positive feedback is the reaction which occurs with the feedback from the actions the system has performed. The blood clot occurs with palette formation which is regulated with the blood lose (continuous feedback).

Negative feedback is a reaction that is the invert of the change distinguished, meaning it capacities to decrease the change. A change is recognized by a receptor and an effector is made to incite a contrary impact which facilitates further reaction.  

The physiological process such as shivering, sweating and digestion are examples of negative feedback.

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3 years ago
DNA is often called a "blueprint" for the body. How does DNA determine an organism's complex traits, such as eye color, skin col
alexandr1967 [171]
The answer your looking for is d
8 0
2 years ago
4. The water cycle is balanced because
Sergeu [11.5K]

Answer:

hello!

Explanation:

The water cycle is critical not only to weather, but to life on earth.  Rain is necessary for the survival of plants and humans.  

Condensation is necessary for cloud formation.  Evaporation is necessary to cooling and keeping a good balance of water vapor in the air.

The water on Earth now is the same water that’s been on Earth since the beginning.  

What makes that feat possible?  The water cycle.  The water cycle is the process that re-circulates water so we can have bodies of water as well as clouds and precipitation.

The first step of the water cycle is evaporation. About 85% of the water vapor in the air comes from water that evaporated from the oceans.  The other 15% comes from evapotranspiration, which is a catch-all term for water that evaporates from over land.  

This includes water vapor produced by plants during transpiration, water from lakes, streams, puddles and soil moisture, direct evaporation of snow and even water vapor from the breath of animals.  

The second step of the water cycle is condensation. Now that the atmosphere is full of water vapor, that water vapor condenses into water droplets.  Sometimes, like early in the morning, the water vapor condenses on the grass as dew and seeps back into the soil, ready to be evaporated again.  

But most of the water vapor condenses higher up in the air and forms clouds. Once the water droplets are in a cloud, two things can happen.  Either the cloud will dissipate and the water droplets will become vapor again, or the cloud will grow and it will begin to precipitate.

The third and final step of the water cycle is precipitation. Precipitation includes all water that falls from the sky, both in liquid and frozen form, which reaches the ground.  

Once the precipitation makes its way to the ground it can end up soaking into the ground, run off into streams and lakes, become snow cover, be used by plants, be inhaled by animals or fall directly back into the ocean. Then the water cycle can begin again and continue for millions of years to come.

6 0
3 years ago
Could someone answer my last question? this is free poinntzs
Whitepunk [10]

Answer: not trying to steal points but whats the question

Explanation:

8 0
3 years ago
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Despite their seemingly simple anatomy and radial symmetry, ________ are a type of deuterostome, and closely related to the chor
dolphi86 [110]

Despite their seemingly simple anatomy and radial symmetry Sea urchins and sea star are a type of deuterostome, closely related to the chordates.

What are the characteristics of deuterostome?

Animals classified as deuterostomes share a common embryonic development.

The first opening during development known as the blastopore changes to the anus in deuterostomes while the mouth changes in protostomes.

They have a coelom, which forms as a result of enterocele (coelom from the digestive tract).

These creatures include the following,

- Chordata,

- Echinodermata,

- Hemichordata.

Hence the correct answer is Deuterostome.

Learn more about Deuterostome,

brainly.com/question/12500582

# SPJ4

5 0
1 year ago
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