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Goshia [24]
3 years ago
7

What is the responsibility of the body's second line of defense?

Biology
2 answers:
steposvetlana [31]3 years ago
8 0
The second line of defense is nonspecific resistance that destroys invaders in a generalized way without targeting specific individuals: Phagocytic cells ingest and destroy all microbes that pass into body tissues. For example macrophages are cells derived from monocytes.
evablogger [386]3 years ago
6 0

Answer:

The immune system detects and responds to a wide variety of pathogens.

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How do you know if a trait on a pedigree is recessive?
Reika [66]
An easy way to tell is if the trait is or isn’t in every generation. If a trait skips a generation, it’s most likely recessive.
5 0
3 years ago
Which process most likely enabled the formation of the early protists? A. photosynthesis B. endosymbiosis C. conjugation D. bina
natita [175]

Answer:

Answer B. Endosymbiosis

Explanation:

Early protists were first eukaryotic organisms and had several membrane bound organelles. The anaerobic protists evolved by acquiring purple bacteria. The purple bacteria have the ability to carry out aerobic cellular respiration. The endosymbiont transformed into mitochondria in due course of evolution. Similarly, the photosynthesizing protists were evolved by endosymbiosis of cyanobacteria which in turn was transformed into chloroplast during further evolution.

5 0
3 years ago
Which countries have the largest carbon footprints in the Oceanic, Asian, European, Caribbean/Central American, South American,
Dmitrij [34]

Answer:

Asia - China (followed by India)

north America - USA (closely followed by canada)

european - Russia ( followed by Germany)

oceanic - Australia

8 0
3 years ago
Oxidative reactions used by aerobic bacteria to generate ATP use ______ as a terminal electron acceptor.
egoroff_w [7]

Answer:

Oxygen

Explanation:

Cellular respiration is the process whereby living organisms synthesize energy in form of ATP. However, it can either be aerobic or anaerobic depending on whether it occurs with or without oxygen. Aerobic respiration occurs in the presence of oxygen.

The aerobic cellular respiration is further divided into glycolysis, Krebs cycle and oxidative phosphorylation. The oxidative reactions used by aerobic bacteria to generate ATP use OXYGEN as a terminal or final electron acceptor.

3 0
3 years ago
When the cell engulfs large fragments of matter, it is called _____.. . endocytosis. exocytosis. pinocytosis. phagocytosis
timama [110]
When the cell engulfs large fragments of matter, it is called phagocytosis. The correct option among all the options that are given in the question is the fourth option or the last option. It is basically a process through which certain living cells by the name of phagocytes engulf other cells or particles. I hope it helps you.
6 0
3 years ago
Read 2 more answers
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