Answer:
30
Explanation:
The seed of an angiosperm is formed as a result of fertilization (fusion of sperm in pollens and the ova from ovary). According to the question, the cells of the seed which will grow into the plant contains 20 chromosomes. Seeds of angiosperms contain a tissue called ENDOSPERM that forms as a result of the unique DOUBLE FERTILIZATION in angiosperms. It occurs when one haploid sperm cell fuses with two haploid polar nuclei to form a triploid endospermic structure that serves as food for the growing embryo in the seed.
Now based on the above explanation, the diploid plant cell with 20 chromosomes will have 10 chromosomes (half as much) in its gametes as a result of meiosis. This 10 chromosomes in each gamete (sperm and ovum) fuses to form a diploid zygote with 20 chromosomes, while one haploid sperm cell (10 chromosomes) also fuses with two haploid polar nuclei (10 chromosomes each) to form a triploid endosperm with 30 chromosomes i.e. 10+10+10.
Answer:
The question is incomplete, here's the complete question;
Which statements accurately describe the roles of decomposers in the carbon cycle? Check all that apply.
-Decomposers release carbon dioxide into the air as waste.
-Decomposers remove carbon dioxide from the air during photosynthesis.
-Decomposers break down the remains of dead plants and animals.
-Decomposers return carbon compounds to the soil.
-Decomposers use carbon to make food molecules.
The correct answer is;
Decomposers release carbon dioxide into the air as waste.
Decomposers break down the remains of dead plants and animals.
Decomposers return carbon compounds to the soil.
Explanation:
In the earth, all living things are made up of carbon. Carbon cycle is the process in which carbon travels from the atmosphere into living things in the earth and then returned into the atmosphere. Carbon is released into the atmosphere through processes like respiration, decomposition, combustion etc. The carbon cycle explains how carbon is stored, made available to living things and replaced on earth. Plants absorb carbon in the form of carbon dioxide from the atmosphere and use it to produce food (glucose) and release oxygen in a process called photosynthesis. When animals feed on these plants , the carbon is transferred to them and thus passes it along the food chain. During respiration, animals release carbon dioxide back into the atmosphere. When the organisms eventually die, the carbon from them is put back into the atmosphere by decomposers so that other living organisms can use it. Decomposers break down dead organisms , releases carbon dioxide through cellular respiration and enriches the soil with nutrients. The examples of decomposers are bacteria, fungi and worms. Bacteria decomposes most types of organic matter. Fungi are the main decomposers in the forest as they break down wood and the cellulose in plant cell walls. Decomposers are very important because they release carbon locked up in the dead organisms back into the atmosphere and without carbon dioxide in the atmosphere plants can not produce glucose and oxygen.
For this situation, shoreline recovery is when sand is added to the shorelines to avoid disintegration. So in shorelines in Georgia, they are adding sand to the shorelines and it is in certainly making a difference. I hope the answer will help you.
Answer:
Both snake and frog are vertebrates and non vertebrates animals.
Explanation:
Snake is a reptile and almost used vertebrates and non-vertebrates in their nutrition. There are few species that are specialized in egg feeder, snake is one of that.
Most of the species has to fed 1 2 in a week. Snake used to eat most pups, mice, rabbits and ducks. Both frog and snake are carnivores. They eat prey, insects, mammals. Both snake and frog comes under the food chain. Frog eaten by snake or snake can eat frog.
