Mucus membranes trap pathogens that are airborne.
a. True
b. False

Answer:

c!!

Explanation:inversely related

Answer:

Becomes thick with blood vessels passing through

Explanation:

Progesterone levels are the highest in the middle of the  luteal phase i.e at the eighth or ninth day of menstural cycle. it is the hormone which is released after ovulation. It is produced by the corpus luteum (an area created by the collapsed follicle) which consists of ovulated egg. At this stage the uterus lining gets thick and also estrogen is at high level. If the conception does not takes place the level of progesterone falls as the corpus luteum starts to break.

Answer;

3 data points

Explanation;

• The minimum number of data points that an experiments should gather is 3 points.
• Data points are discrete units of information in a scientific experiment. In statistics or even scientific experiments a data point is determined by measurement or research and may be represented numerically or graphically.
• Data points may also refer to information that is gathered in a scientific experiment, that needs to be analyzed for the purpose of deriving possible results or conclusions. An experiment requires a minimum of three data points from which a graphical representation can be obtained from.

The effect of species loss on the environment is researched by an ecologist in an ecosystem. Thus option C is correct.

What are biotic components of ecosystem?

An ecosystem is defined as the  structural and functional unit of where the living organisms interact with each other and their surrounding and was  coined by A.G.Tansley, an English botanist, in 1935.

The basic components of an ecosystem are Biotic Components and Abiotic Components, both the components are interrelated  with each other by doing energy flow.

Biotic components belongs to all living components like autotrophs, heterotrophs and saprotrophs. Autotrophs or producers like plants.

Second is consumer or heterotrophs which  depend on other organisms for their food, can be primary consumers, secondary consumers and tertiary consumers.

Primary consumers are herbivores, Secondary consumers can be either carnivores or omnivores. Tertiary consumers get energy from on secondary consumers.

Quaternary consumers are carnivores and  Decomposers include saprophytes feed on dead and decaying matter.

Thus option C is correct.

For more details regarding ecosystem , visit:

brainly.com/question/13979184

#SPJ2