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Dafna11 [192]
3 years ago
15

When foreign material enters the body, one way the immune system responds is by

Biology
2 answers:
kondor19780726 [428]3 years ago
6 0
The Digestive System

: 3
Schach [20]3 years ago
3 0
Pathogens may enter you but there is a layer (almost like a wall) that they will have to get through first (in the skin) bacteria can also kill pathogens. The immune system will produce antibodies that will also kill off pathogens.
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There is three types of neurons occur. Sensory neurons typically have a long denfrite and short axon, and carry messages from sensory repeptprs to the central nervous system. Motor neurons have a long axon and short dendrites and teansmit messages from the central nervous system to the muscles.
7 0
3 years ago
True/False, all organisms have a form of waste removal. Explain your answer with specific examples.
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I believe the answer is true. Humans have a digestive track, which removes unwanted matter from the body.
3 0
3 years ago
Read 2 more answers
The table provided shows the predator-and-prey relationships in a wetland habitat.
Varvara68 [4.7K]

Answer:

mosquitoes

Explanation:

more population means that they will eat more (decrease in mosquito population)

8 0
2 years ago
In a particular family, one parent has Type A blood, the other has Type B. They have four children. One has Type A, one has Type
AlladinOne [14]

Answer:

The correct answer is -

Parental genotypes: AO & BO

Children genotypes: AB, AO, BO, and OO

Explanation:

In the human blood group system, more than two types of alleles are present that lead to the existence of four blood groups in the human population.

Here, A and B alleles are co-dominant while the O allele is recessive to both A and B alleles in the ABO system.

The cross depicting the genotypes of children is

IA IO

IB    IAIB    IBIO

IO   IAIO   IOIO

In this cross, we get the same result as given in the question -

One parent has A and the other has B type blood while the children have all four types of blood groups One has Type A, one has Type B, one has Type AB, and the last has Type O. It is possible only when parents are heterozygous in their genotypes and not expressing codominance.

6 0
2 years ago
How does contour plowing in farming help to prevent pollution?
wel

D) Contour plowing is used to reduce erosion and sediment pollution.

Explanation:

Contour plowing in farming helps to prevent pollution by reducing surface erosion of topsoil and preventing sediment pollution.

Contour plowing is a farming technique in which crops are planted along the slopes of hills or contoured areas.

  • The rate at which rain water and precipitation moves along slope terrain is very fast.
  • This causes the washing off of the the topsoil on hills to eroded very fast.
  • Contour plowing breaks the slope and farming is done along movement on the contour.
  • This prevents topsoil erosion.
  • It also prevents sediment pollution in nearby streams and water bodies that are located around the valley at the base of the hill.

Learn more:

Soil erosion brainly.com/question/2473244

#learnwithBrainly

8 0
3 years ago
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